CN2854213Y - Oscillating mechanism - Google Patents

Abstract

A swinging mechanism, in particular to a swinging mechanism that, which is changing the rotation of an input axis to the swing of an output axis by a gear mechanism is provided. The input axis is connects to an incomplete gear and a segment gear. The output axis is connected to a swinging gear. The incomplete gear is joggled with the swing gear. The segment gear is joggled a transition gear, which joggled with the swinging gear. The utility model has the advantages that Realization of swinging without positive and negative rotation of the input axis; the swinging of the output axis is under uniform velocity if the input axis is under uniform velocity. Moreover, the linear velocity is same in clockwise and anticlockwise swinging of the output axis; 2. Simple structure, low cost and high practicability.

Description

A kind of swing mechanism

Technical field

The utility model relates to a kind of swing mechanism, especially by gear mechanism rotatablely moving of input shaft is converted to the swing mechanism of the swing of output shaft.

Background technique

Existing swing mechanism is mainly realized clockwise and counter-clockwise swing by the several methods such as clockwise and anticlockwise of crankrocker mechanism, turning surface cam mechanism or control input shaft.Adopt crankrocker mechanism to realize will rotatablely moving when becoming swing, when rotatablely moving to uniform rotation, swing speed is uneven, and the run duration difference on the both direction of swing; When adopting the realization of turning surface cam mechanism that rotation is become swing, the even and difficult processing of the speed the when groove on the turning surface is difficult to guarantee to swing; Adopt the mode of control input shaft clockwise and anticlockwise to realize swing, control section is required than higher, and the difficult usually swing speed of output shaft of realizing is stablized constant.

The model utility content

The purpose of this utility model is to provide a kind of swing mechanism, and it is by simple gear structure, is not changing the at the uniform velocity swing that realizes output shaft under the situation with rotating speed that turns to of input shaft and easier processing.

The technological scheme that realizes the utility model purpose is: a kind of swing mechanism, especially by gear mechanism rotatablely moving of input shaft is converted to the swing mechanism of the swing of output shaft, distinctive feature is: input shaft and partial gear and tooth sector connect firmly, output shaft and wobble gear connect firmly, partial gear and wobble gear engagement, tooth sector and transition gear engagement, transition gear and wobble gear engagement.

And, there is the engageable district of tooth corresponding between partial gear and the wobble gear with the anodontia meshing zone between tooth sector and the transition gear, vice versa.

And, the pivot angle θ of output shaft:

θ＝R ₁(2π-θ ₁)/R ₃＝R ₂θ ₁/R ₃

In the formula: R ₁Be the radius of partial gear, R ₂Be the radius of tooth sector, R ₃Be the radius of transition gear, θ ₁Be the radian of tooth sector, θ is a pendulum angle.

The utility model has the advantages that: 1. the present invention does not need the input shaft clockwise and anticlockwise can realize swing, rotates under the prerequisite at the uniform velocity at input shaft, and the swing of output shaft also is at the uniform velocity, and output shaft is equal everywhere with the linear velocity during counter-clockwise swing clockwise; 2. and simple in structure, cost is low, has very strong practicability.

Description of drawings

Fig. 1 is the sectional view of signal the utility model structure.

Fig. 2 is the sectional view at Figure 1A-A place.

Embodiment

With reference to Fig. 1, Fig. 2, among the figure: 1. end cap, 2. bearing housing, 3. bearing, 4. bearing, 5. input shaft, 6. partial gear, 7. tooth sector, 8. sleeve, 9. transition gear, 10. spool, 11. output shafts, 12. wobble gears.Described in the utility model is a kind of swing mechanism, especially by gear mechanism rotatablely moving of input shaft 5 is converted to the swing mechanism of the swing of output shaft 11, distinctive feature is: input shaft 5 connects firmly with partial gear 6 and tooth sector 7, output shaft 11 connects firmly with wobble gear 12, partial gear 6 and wobble gear 12 engagements, tooth sector 7 and transition gear 9 engagements, transition gear 9 and wobble gear 12 engagements.

The rotatablely moving to wait by motor, oil hydraulic motor, pneumatic motor or motor of described input shaft 5 provides.

Further technological scheme can be:, there is the engageable district of tooth corresponding between partial gear 6 and the wobble gear 12 with the anodontia meshing zone between tooth sector 7 and the transition gear 9, vice versa.Its objective is that when making partial gear 6 stop engagement with wobble gear 12, tooth sector 7 is meshed with transition gear 9

And, the pivot angle θ of described output shaft 11:

θ＝R ₁(2π-θ ₁)/R ₃＝R ₂θ ₁/R ₃

In the formula: R ₁Be the radius of partial gear 6, R ₂Be the radius of tooth sector 7, R ₃Be the radius of transition gear 9, θ ₁Be the radian of tooth sector 7, θ is a pendulum angle.

During work, input shaft 5 can be all the time towards a direction rotation, and when partial gear 6 meshed with wobble gear 12, promptly towards a certain direction rotation, at this moment, tooth sector 7 was separated with transition gear 9 wobble gear 12; When partial gear 6 and 12 out-of-gear whiles of wobble gear, tooth sector 7 promptly is meshed with transition gear 9, and rotates towards other direction by transition gear 9 driving wobble gears 12.Go round and begin again thus and promptly realized swinging back and forth of output shaft 11.

Claims (3)

1. swing mechanism, especially by gear mechanism rotatablely moving of input shaft is converted to the swing mechanism of the swing of output shaft, it is characterized in that: input shaft and partial gear and tooth sector connect firmly, output shaft and wobble gear connect firmly, partial gear and wobble gear engagement, tooth sector and transition gear engagement, transition gear and wobble gear engagement.

2. swing mechanism according to claim 1 is characterized in that: have the engageable district of tooth corresponding with the anodontia meshing zone between tooth sector and the transition gear between partial gear and the wobble gear, vice versa.

3. swing mechanism according to claim 1 and 2 is characterized in that: the pivot angle θ of output shaft:

θ＝R ₁(2π-θ ₁)/R ₃＝R ₂θ ₁/R ₃

In the formula: R ₁Be the radius of partial gear, R ₂Be the radius of tooth sector, R ₃Be the radius of transition gear, θ ₁Be the radian of tooth sector, θ is a pendulum angle.

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